Thank you very for your answer!

On 16 oct. 03, at 20:30, der Mouse wrote:

[snip]

> It sounds to me as though what you really want is pageable kernel
> memory.  I don't know whether that exists at present.

> Hehe here we are, This is what I would like to have.

NetBSD does not have a pageable kernel. You need to use some other OS for 
that like [but not limited to] AIX. There are lots of kernel-resident 
daemons/services that run into this crunch of not getting large enough 
chunks of kernel memory -because of which the  kernel is made pageable. 
Since you can't make such a major enhancement overnight, the next best 
thing is to reserve more space that could be allocated inside the kernel 
and have a smaller userspace area [I mean change the physical barrier 
between user and kernel space and Im not aware of hw limitations]. The 
memory cannot be copied in from userspace in all cases -because the kernel 
service may need all of the userland memory to be accessed in a short time 
[unless your copyin is really efficient and you write a syscall to 
implement the kernel service so that it executes within process context].

regards
-kamal




Any idea how can I produce such a thing?

> /~\ The ASCII der Mouse
> \ / Ribbon Campaign
>  X  Against HTML                      mouse@rodents.montreal.qc.ca
> / \ Email!                  7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 
27 4B
>